This specification describes a chassis cab, crew cab truck with an asphalt patch body, BC-4 Unibelt Patcher or approved equal. The chassis including all necessary equipment shall be furnished and delivered new, complete and ready for use. All parts not specifically mentioned but which are necessary for the complete unit shall be supplied and installed by the vendor even though such work or materials are not specifically outlined and shall conform in strength, quality of material and workmanship to the best practice known to the Automotive Industry.